On the Proof-of-Place side of things, yup.
Hacked this together as a PoC:
https://meatspacestr.io
Concept could be used for various different use cases.
Are you storing the mapping of place to pubkey anywhere? If so, it might be able to be done with ZKProofs instead, right?
Regardless, this might also be useful for Onosendai’s cyberspace that is mapped to physical space @e8ed3798…67dd345a